Handle for a window covering



FIG. 1 is a top perspective view of a handle for a window covering showing our design in a position of use;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof, which is a mirror image of the left side view; and,

FIG. 6 is a bottom perspective view thereof.

The broken lines in FIG. 1 illustrating a rail on which the handle for a window covering is mounted depicts environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a handle for a window covering, as shown and described. 